JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2025) — Question 56

Which statement about aggregate routes is correct?

Answer options

• A. Aggregate routes can only be used for static routing but not for dynamic routing protocols.
• B. Aggregate routes are automatically generated for all of the subnets in a routing table.
• C. Aggregate routes are always preferred over more specific routes, even when the specific routes have a better path.
• D. Aggregate routes are used for advertising summarized network prefixes.

Correct answer: D

Explanation

The correct answer is D, as aggregate routes are specifically designed to advertise summarized network prefixes, which helps in reducing the size of the routing table. Option A is incorrect because aggregate routes can be used in conjunction with dynamic routing protocols. Option B is false since aggregate routes do not automatically generate for all subnets; they are created based on specific configurations. Option C is also incorrect, as more specific routes are preferred over aggregate routes when they provide a better path.